Bed frame



FIG. 1 is a perspective view.

FIG. 2 is a front perspective view.

FIG. 3 is a rear side perspective view.

FIG. 4 is a left side perspective view.

FIG. 5 is a right side perspective view.

FIG. 6 is a bottom view; and,

FIG. 7 is a top view. 

The ornamental design for a bed frame, as shown and described. 